but the rest of the north bay will be dry. but it will be dry for all of us come thursday. on this saturday night, flood emergency. 15 million americans in the path of flash flooding tonight. so dangerous, it caused a train to derail. parts of texas haven't seen this much rain in two decades. disaster averted. tonight, the strongest hurricane ever recorded has come and gone. our teams are on the ground in mexico, assessing patricia's impact. inside the rain. dramatic video obtained by nbc news, appears to show the hostage rescue mission at an isis prison that left a u.s. commando dead. homecoming tragedy. three people killed, and more than 30 injured after a suspected drunk driver plowed through a parade at oklahoma state university. tonight, the chaotic homecoming heart break. and grand slam.

the father and son duo who joined forces on the softball field by their love of the game and each other is in a league of its own. "nightly news" begins now. >> announcer: from nbc news world headquarters in new york, this is "nbc nightly news." reporting tonight, thomas roberts. good evening. we begin with two major weather stories tonight. hurricane patricia that barreled ashore is the strongest hurricane ever recorded. sustained winds of 165 miles per hour. we have teams op the ground in mexico to assess the damage. all that in a moment. but first, a separate weather system bringing catastrophic and dangerous flooding to texas with certain parts of the lone star state getting over 18 inches combined in the last three days. flood watches now extend from texas into louisiana. effectively putting more than 15 million people in the south on high alert. nbc's janet has the

latest in houston. >> reporter: off the rails, a freight train overturns in north texas after the track is submerged in floodwaters near corsicana. two crew members escape by swimming to higher ground. >> corsicana just got inundated with so much rainfall. >> reporter: more than 18 inches turned roads into rivers. shutting down a section of interstate 45 that runs through the community. traffic at a standstill for 12 months. the floodwaters swirled around them trapping them in the cars. >> the car was being pushed by the wind. we can't see and can't control the car. >> reporter: with every resource on the road, first responders could barely keep up with the calls for help. >> i've never seen it like this. i coast be gigin to tell you how many high-water rescues we made today.

>> reporter: floodwaters making travel difficult and dangerous. and more delays at texas airports tonight. after hundreds of flights were canceled friday. >> rainfall starting to pick up with some intensity, certainly out in the west and southwest sides. >> reporter: several funnel clouds were spotted this morning. >> take a look at this damage. this is the roof. >> reporter:. and this is heavy-duty metal. the focus is austin, san antonio, houston, and the texas coast, as the remnants of patricia move closer. >> depending how fast the rain comes down, we know there will be some high-water incidents. we have, of course, all of our first responders on notice that they may have to deploy. >> reporter: as much as 10 inches of rain is predicted for south texas, which could trigger another round of flash flooding. the worst of the weather and greatest potential for flash flooding comes in the next 12 to 14 hours. when it's dark. authorities fear drivers may not see

the rising water or barricades that are blocking off roads. thomas, back to you. >> janet, thank you. what was once hurricane patricia has fallen apart after proving it had a larger bark than bite, leaving behind what appears to be a path of little destruction. our teams are on the ground and still assessing the damage. but so far, there are no reports of any deaths or injuries. nbc's joe fryer is in mexico with more. >> reporter: hurricane patricia plowed into mexico, losing a little steam but still packing 165-mile-an-hour winds. a record for the country's pacific coast. stranded tourists prepared for the worst with resorts in puerto vallarta turning ball rooms into shelters. rosie evacuated by bus. a long, scary ride. >> it was banging on the windows. the windows started to get foggy. you're like, okay, we've got to go. we've got to go. >> reporter: this is what hurricane patricia looked like from space. this is a view from a

time lapse camera from ixtapa from the edge of the system. hurricane patricia is not just strong, the storm is huge, spanning a 170-mile stretch on mexico's popular coastline. more than 7 million people in the storm's path. the storm's strongest punches landed to the south of puerto vallarta, toppling trees. this man said part of his house was destroyed but he's grateful his family survived. a fishing village near the hurricane's eye, a school was torn to pieces. gadi schwartz viewed more devastation. >> reporter: this is to the coast, you can see the damage was pretty extensive all the way out here. not just from the wind, but take a look at what the rain did. 12 to 14 inches falling here. you can see asphalt and concrete structure caving in from all that rain. >> reporter: still, mexico's president said the destruction is not nearly as catastrophic as many

had feared. >> it kind of landed in the goal posts just between the two populated areas. the two populated areas to the north and south really dodged a bullet. >> reporter: in the 24-hour period before hitting land, the storm's winds accelerated from 85 miles an hour to 200, unprecedented growth in warm el nino water. it was broken up by mexico's mountainous terrain. the country is breathing a sigh of relief. airports that were closed by the storm have now reopened, including the one in puerto vallarta. there are no reports of any fatalities there, urging people to remain cautious because of the risk of flooding and mudslides. thomas? >> we can certainly see from the shot behind you, people are already returning to enjoy themselves on the beaches in mexico. meteorologist dylan is here with us now. this is the most powerful hurricane ever recorded. thankfully, very

little damage from this. explain the remnants of patricia, how it will impact the already soaked state of texas. >> even though it is a post-tropical cyclone, the moisture still has to rain itself out. look at some of the records. the strongest hurricane on record, lowest pressure ever recorded in the atlantic or the eastern pacific, all because of el nino, producing water temperatures near 90 degrees. within just 24 hours, it strengthened from a tropical storm up to a cat 5. just as quickly as it strengthened, it weakened as it moved over the mountainous terrain of mexico. now we're seeing some of the moisture streaming into southeastern parts of texas. there is a tornado watch along the coast. we already have in corsicana more than 20 inches of rain having fallen. the focus will shift to more of the coast in galveston as the remnants of patricia move through. we could end up to 10 inches of rain. that could lead to more flash flooding. monday and tuesday, the biggest threat stretches into louisiana, where up to 7 inches of rain is possible.

that is going to be a major concern over the next couple of days. >> dylan, thank you very much. now to an nbc news exclusive. we have a dramatic new body camera video of this week's hostage rescue mission at an isis prison that left a u.s. commando dead. richard engel has our report tonight. >> reporter: the footage appears to show this joint u.s. kurdish raid on an isis prison in iraq last week. it was obtained by the arab 24 news agency. it said from kurdish military officials. amid the sounds of gunfire, the hostages emerge, terrified, and bare foot. their hands held up to show they're unarmed. bullet holes in the walls suggest there had been a gun fight. a voice in arabic apparently from the rescuers yells for the hostages to keep moving. they do. in prison gowns. some appear stained in blood as they move to safety. the commandos inspect another room with a

large isis flag. what sounds like american voices can be heard. an adjacent hallway is lined with what looks like prison cells. the troops move with skill. and have american-made weapons. much is not shown in the footage, including the moment when master sergeant joshua wheeler from the top-secret delta force was shot. today his remains were flown back to the united states, the first american to die in the war on isis. a war now fought like this, room to room, with americans engaged in an operation alongside kurdish fighte fighters, a far cry from the promise of no american boots on the ground. a senior u.s. military official told us tonight he is aware of the footage, and that the successful rescue of so many hostages it showed is testament to master sergeant wheeler's bravery and sacrifice.

still, critics will question what american troops were doing there in the first place. thomas? >> richard engel with that exclusive, thank you. at home tonight, a suspected drunk driver plowed through a crowd at oklahoma state university's homecoming parade killing three people and injuring more than 30 others. here's the late details. >> all available units, all available units we need you to respond. >> reporter: first responders found a chaotic scene. witnesses say the car plowed into a parked police motorcycle, and then into the crowd, sending spectators flying. the driver, chambers, was taken into custody charged with driving under the influence. >> the police department's accident reconstruction team is on scene. we treat these like we would any homicide investigation. >> reporter: on game day, tens of thousands of fans and their families converge on stillwater, especially for homecoming. >> the oklahoma state

homecoming parade is probably one of the most wholesome, happy events in the country. and to have it fouled like this, and these victims, it's a terrible tragedy. >> reporter: this afternoon, the oklahoma state cowboys faced off against the kansas jayhawks and took to twitter to show their support. our thoughts are with oklahoma state and those involved in the tragic accident this morning. of those injured, at least eight are critical, numbers that might have been higher had first responders not been on scene immediately. many of them were participating in today's parade. the hospital confirmed the youngest victim, a 2-year-old, died in connection with this accident, bringing the death toll to four. many others are still critical. thomas? >> tonight the democratic field of presidential candidates is converged for an annual fund-raising dinner in iowa. it is hard to believe we're only 100 days to the iowa caucuses. the 2016 race reached

a turning point this week with two democrats dropping out and donald trump losing steam in the polls to gop rival ben carson. we begin with kelly o'donnell in des moines. kelly, good evening. >> reporter: good evening, thomas. this is one of the most important days for iowa democrats and the entire election season. a political contest between campaigns to show how many supporters and how much enthusiasm they can turn out right now 100 days before the caucuses. by tradition, that tells us that tonight's big speeches can make or break the candidate. with a line winding through downtown des moines, this is a test to show campaign spirit. >> $3, 2 for $5. >> reporter: not your everyday rally. hillary clinton's team is going all in on star power. saving toward this day, husband bill clinton's first campaign stop here in iowa. >> i want to thank katy perry coming here to sing.

i want to thank all of you for showing up and for supporting her. >> reporter: inviting a superstar hit maker to clinton's campaign scene. that's katy perry in concert. clinton has hit a high note. a string of events in her favor, from vice president biden's decision to stay out of the race, to her strong performances at the debate and her toelt on capitol hill. bernie sanders opted for less blitz today. >> this is the wealthiest country in the history of the world, but most people don't know it. >> reporter: to show off the grass roots strength that has made him a force in the race. trailing clinton and sanders, but still in the race is former maryland governor martin o'mally who made his own music.

all three democrats speak tonight at a premier event known as the jefferson jackson dinner where in 2007 it was barack obama who shined, overtaking clinton. that history only raises the stakes for this year's big show. kelly o'donnell, nbc news, des moines. >> reporter: i'm in jacksonville where donald trump is taking target practice. >> you got carson, i don't know what the hell is going on there. >> reporter: trump slipping to second in iowa. >> carson is lower energy than bush. >> reporter: sniping at ben carson, who's surging to the top spot there, and telling chuck todd he won't engage in mud pit politics. >> in terms of energy, i'm not sure that there's anybody else running who's spent 18 or 20 hours intently operating on somebody. >> reporter: outsiders, carson and trump, who still lead nationally, eclipsed the rest of the gop field, prompting a course correction by jeb bush as he slashes

payroll and streamlines staff trying to get into fighting shape, with today fighting words. >> i've got a really cool things i could do other than sit around being miserable, listening to people demonize me and me feeling compelled to demonize them. that is a joke. elect trump if you want that. >> reporter: bush's frustration echoed by establishment republicans, including his own father, "the new york times" reporting the former president tells friends, i'm getting old at just the right time. >> for a lot of these folks, it just doesn't make any sense. i think it doesn't make any sense because in many ways the party has moved on without them. >> reporter: the bush patriarch and his wife meeting with their sons this weekend in texas for a private summit with supporters, long in the works, but giving trump yet another target. >> he's meeting today with mommy and daddy. and they're working on their campaign. >> reporter: all of this makes next week's debate a must-much.

the question for bush, can he stand it? can carson withstand the scrutiny? and for trump, can the businessman live up to expectations in what will be a business and economy focused debate? thomas? >> a must-watch for sure. chuck todd's interview with dr. ben carson tomorrow on "meet the press." the "nightly news" continues this saturday. what a star witness said on the stands this week with the heist that inspired good fellas.

we are back with an infamous heist, an iconic film and who prosecutors say had a key role that inspired "goodfellas." >> reporter: this week in a new york courtroom, details some have been waiting decades for. >> it looks like a big one, maybe the biggest ever. >> reporter: the 1978 heist was immortalized in the movie "goodfellas." but before that, it was real life. >> they hold up a historic -- >> the audacity of it, this crew of organized crime members breaking into a vault at kennedy airport and making off with it, it's just a great caper. >> reporter: now some of the reputed wise guys who allegedly took part are back together. but this time, on opposite sides of the law. turning against each other at the trial of

vincent osaro, the bonano crime family captain for his alleged role in the heist. he's pleaded not guilty. this week he was heard allegedly talking about the robbery in tapes secretly recorded by his cousin, who also took part in the heist and testified against osaro. >> probably beyond mob betrayal. it's a blood betrayal. >> reporter: valente testified he thought the gang was going after $2 million, but was surprised when they walked away with $6 million in cash and jewels. >> he was able to tell the government about where and with whom that jewelry was fenced. >> reporter: in the coming days, the prosecution is expected to call joe macino, the head of the bonano family, the highest ranking boss to ever become a government witness. >> he will testify he was given a suitcase full of jewelry from the robbery. that's going to be

extremely powerful evidence. >> reporter: a real-life drama, as captivating as its movie counterpart, giving new details into the lives of those accused famous for pulling off one of the most famous heists in history. back with news about a hollywood legend.

we're back now. remembering screen legend maureen o'hara who died after a storied hollywood film

career, best known for her roles on "miracle on 4th street," and "a parent trap." known for her vivid appearance on film, she was known for be ing a leading lady. last night in game six, of the alcs, kansas city. our cameras caught up with them working out today in preparation for the big game. up next, how one man stepped up to the plate so his father could play the game he loved.

. finally tonight, as we gear up for the world series, we wanted to share with you another story from the field of dreams. this one a tale of a father and a son, whose love of the game is as constant as their love for each other. harry smith tonight with their story. >> why don't you bat after -- >> reporter: matt goes off the lineup. kind of cool, because mo is matt's dad. and mo is 81. >> who doesn't want to play ball with their dad. that's a dream. >> reporter: the game has always been a family passion, baseball, softball, a diamond and a bat was all that mattered. when mo's old team folded ten years ago, it was matt that came to the rescue. matt knew that for his

father, the game was something he couldn't live without. seriously. the camaraderie, the competition. it's what makes mo, mo. what did it mean to you when your own kid comes out and says, hey, dad, i've got a team, you can play? >> i walked out that first time, i was just -- right here. it was great. >> reporter: since this is a team based on nepotism, guess who's the starting pitcher. >> the mo man. >> reporter: for safety's sake, matt insists mo wear a mask on the mound. a small concession, says mo, for winning is all he cares about. >> it's important to me to win. but maybe i'll start to mature in a few years. perhaps. >> what do you say, mo? >> reporter: and the rest of the team is all in. >> mo's pitching, and we're playing as hard as we can, because we know how competitive

mo is. >> reporter: family softball. >> this is the coolest thing ever. there's nothing better. >> reporter: nope, nothing better. harry smith, nbc news, boston. way to go, mo. that's "nbc nightly news" for this saturday. i'm thomas roberts reporting from new york. thanks for watching, and good night. right now at 6:00 a police chase and shooting shuts down this bay bridge this morning. tonight traffic still a mess. what you need to know if you are headed to the city this evening. and good evening i'm peggy bunker. terry mcsweeney is off tonight.

nearly ten hours after officers chased down a stolen police car and officers opened fire on treasure island traffic on the bay bridge still moving at a snail's pace. let's take you there live right now and get a look at the toll plaza which as you can see very unusual for a saturday night, completely backed up, no end in sight. these photos posted on twitter by the san francisco police department show the damage that was left behind. you can see the axel of this police suv destroyed. nbc bay area's christie smith is live in oakland with the story. christie, this whole situation started in san francisco. >> reporter: that's right. according to san francisco police this involved a stolen san francisco police car and suv, but also involved shots fired, a pursuit, even a leap from the upper deck to the lower deck of the bay bridge. now, the ramps that were closed because of the investigation, those are back open now, but as you can see traffic still really